Company lists · Data refreshed September 2026

Top 25 Cybersecurity consultants based in France

Name: Cybersecurity consultants based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,887 companies tracked

RevenueBase identified 1,887 cybersecurity consultants headquartered in France as of September 2026 and tracks 30,798 professional contacts across them, including 11,158 with verified work emails and 654 with mobile numbers. Paris is the largest hub.

This list covers cybersecurity consultants headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 24, 2026 86% judged on-target in blind review

1,887Companies

30,798Contacts tracked

11,158Verified emails

654Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest cybersecurity consultants based in France

Ranked by team size

Top 25 of 1,887 cybersecurity consultants based in France, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Orange Cyberdefense	Partial evidence	Nanterre, FranceHQ checked Sep 24, 2026	1,001-5,000	3,673 contacts →
	Partial evidence “Orange Cyberdefense is the expert cybersecurity business unit of the Orange Group.” Source: RevenueBase Database · checked Sep 24, 2026
2	Airbus Protect	Partial evidence	Blagnac, FranceHQ checked Sep 24, 2026	1,001-5,000	1,431 contacts →
	Partial evidence “Airbus Protect is an Airbus subsidiary bringing together expertise in cybersecurity, safety and sustainability-related services.” Source: RevenueBase Database · checked Sep 24, 2026
3	SQUAD	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	501-1,000	803 contacts →
	Indirect evidence “The growing threat of cyber risks, the expansion of cloud computing and the emergence of the DevOps movement are reshaping IT practices, enlighting the relevance of our vision for…” Source: RevenueBase Database · checked Sep 24, 2026
4	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 24, 2026	1,001-5,000	639 contacts →
	Partial evidence “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: RevenueBase Database · checked Sep 24, 2026
5	Byblos Group	Indirect evidence	Lissieu, FranceHQ checked Sep 24, 2026	1,001-5,000	538 contacts →
	Indirect evidence “Byblos Group est un groupe indépendant spécialisé dans la protection des personnes, des biens et des données, avec une approche sur mesure, fondée sur l’excellence opérationnelle…” Source: RevenueBase Database · checked Sep 24, 2026
6	own.security	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	51-200	506 contacts →
	Partial evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 24, 2026
7	Eryma Security Systems	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 24, 2026	201-500	457 contacts →
	Indirect evidence “En tant qu’intégrateur ouvert de solutions de sûreté électroniques, nous vous accompagnons dans la protection de vos biens et personnes.” Source: RevenueBase Database · checked Sep 24, 2026
8	LINKT	Indirect evidence	Puteaux, FranceHQ checked Sep 24, 2026	201-500	433 contacts →
	Indirect evidence “Opérateur de services managés, expert en télécoms et cybersécurité, Linkt accompagne les ETI, les grands comptes et les collectivités dans la performance et la sécurisation de…” Source: RevenueBase Database · checked Sep 24, 2026
9	Metsys	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 24, 2026	501-1,000	397 contacts →
	Indirect evidence “Metsys est un intégrateur de solutions de cybersécurité, d’infrastructure et de cloud.” Source: RevenueBase Database · checked Sep 24, 2026
10	Neverhack	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	1,001-5,000	382 contacts →
	Partial evidence “NEVERHACK is a French group specialized in cybersecurity for over 40 years.” Source: RevenueBase Database · checked Sep 24, 2026
11	Synetis	Partial evidence	Paris, FranceHQ checked Sep 24, 2026	201-500	359 contacts →
	Partial evidence “Founded in 2010, Synetis is the leading independent French consultancy firm specialising in information systems security (ISS).” Source: RevenueBase Database · checked Sep 24, 2026
12	Devoteam Cyber Trust	Partial evidence	Levallois-perret, FranceHQ checked Sep 24, 2026	10001+	338 contacts →
	Partial evidence “Devoteam Cyber Trust is the cybersecurity specialist arm of the Devoteam Group.” Source: RevenueBase Database · checked Sep 24, 2026
13	Almond	Indirect evidence	Sèvres, FranceHQ checked Sep 24, 2026	201-500	303 contacts →
	Indirect evidence “Née de la fusion des sociétés NetXP et Provadys, Almond se positionne comme un acteur majeur français indépendant de l’audit et du conseil dans les domaines de la Cybersécurité…” Source: RevenueBase Database · checked Sep 24, 2026
14	Cyllene	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	201-500	279 contacts →
	Indirect evidence “Chez Cyllene, on couvre le spectre complet de votre besoin en termes de : Conseils 🧬 Définition d’architectures Hébergement & Services managés Cybersécurité & Formations…” Source: RevenueBase Database · checked Sep 24, 2026
15	Intrinsec	Indirect evidence	Courbevoie, FranceHQ checked Sep 24, 2026	201-500	245 contacts →
	Indirect evidence “Intrinsec is focused on Information Security.” Source: RevenueBase Database · checked Sep 24, 2026
16	Formind	Indirect evidence	Issy-les-moulineaux, FranceHQ checked Sep 24, 2026	201-500	244 contacts →
	Indirect evidence “Formind est un leader français indépendant, expert en cybersécurité.” Source: RevenueBase Database · checked Sep 24, 2026
17	Airbus Defence And Space Cyber	Indirect evidence	Elancourt, FranceHQ checked Sep 24, 2026	501-1,000	225 contacts →
	Indirect evidence “The Cyber business of Airbus Defence and Space is a European specialist in cyber security for defence and aerospace systems and assets.” Source: RevenueBase Database · checked Sep 24, 2026
18	CNS Communications	Indirect evidence	Lyon, FranceHQ checked Sep 24, 2026	51-200	223 contacts →
	Indirect evidence “We are independent experts in networking and telecommunications.” Source: RevenueBase Database · checked Sep 24, 2026
19	Stanley Security France	Indirect evidence	Ivry-sur-seine, FranceHQ checked Sep 24, 2026	1,001-5,000	191 contacts →
	Indirect evidence “STANLEY Security est devenu Securitas Technology en 2022.” Source: RevenueBase Database · checked Sep 24, 2026
20	Synacktiv	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	201-500	171 contacts →
	Indirect evidence “Synacktiv is an offensive security company founded in 2012 by several security experts.” Source: RevenueBase Database · checked Sep 24, 2026
21	Cybelangel	Indirect evidence	Clichy, FranceHQ checked Sep 24, 2026	51-200	160 contacts →
	Indirect evidence “CybelAngel combines artificial intelligence and human expertise to help companies in all industries to detect, analyze and effectively counter cyber threats.” Source: RevenueBase Database · checked Sep 24, 2026
22	Secure-Ic	Partial evidence	Cesson-sevigne, FranceHQ checked Sep 24, 2026	51-200	154 contacts →
	Partial evidence “With presence and customers across 5 continents, Secure-IC is the rising leader and the only global provider of end-to-end cybersecurity solutions for embedded systems and…” Source: RevenueBase Database · checked Sep 24, 2026
23	S3ns	Indirect evidence	Paris, FranceHQ checked Sep 24, 2026	51-200	151 contacts →
	Indirect evidence “Alliance entre #Thales, leader français de la #cybersécurité, et #Google, leader mondial du #Cloud proposant les meilleures technologies au service de l’#innovation, S3NS a pour…” Source: RevenueBase Database · checked Sep 24, 2026
24	Services Network Security	Indirect evidence	Montpellier, FranceHQ checked Sep 24, 2026	201-500	144 contacts →
	Indirect evidence “Créée en Juin 2002, Services Network Security est spécialisée dans la sécurisation des passerelles internet et dans les interconnexions VPN.” Source: RevenueBase Database · checked Sep 24, 2026
25	ADNOV	Indirect evidence	Venelles, FranceHQ checked Sep 24, 2026	201-500	139 contacts →
	Indirect evidence “ADNOV, filiale du groupe ADSN, acteur de renommée française à l'ancrage national, développe depuis plus de 40 ans une expertise reconnue dans la cybersécurité et la protection des…” Source: RevenueBase Database · checked Sep 24, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity consultants.
Partial evidence: Its own public description names part of cybersecurity consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,887 cybersecurity consultants based in France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 11,158 reachable decision-makers.

Free signup · no credit card

View the full list →

Cybersecurity consultants based in France at a glance

As of Sep 24, 2026

36.2%Verified-email coverage

2.1%Mobile-number coverage

16.3Average contacts per company

1-10Median size (employees)

27.0%Largest-city concentration · Paris

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,287

11-50

430

51-200

107

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

8,5430–30

2,43131–60

14261–90

590–180

37180+

Company record updated

Median 69.0d

00–30

9,70731–60

13,80161–90

5,53490–180

1,756180+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “cybersecurity consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity consultants, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 11,158 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 24, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity consultants by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cybersecurity consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cybersecurity consultants are there based in France?

RevenueBase identified 1,887 cybersecurity consultants headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Orange Cyberdefense, headquartered in Paris, tops this list with the largest team on record.

Which city has the most cybersecurity consultants?

Paris leads with 509 headquartered companies, followed by Lyon (66) and Toulouse (34).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 11,158 verified decision-maker contacts tracked across these 1,887 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,887 cybersecurity consultants based in France. Start with a free account, no credit card.

Download this list →

Related lists

Cybersecurity consultants by geography

Browse the directory

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.